1 | var $ = require('../internals/export');
|
2 |
|
3 | var nativeAtanh = Math.atanh;
|
4 | var log = Math.log;
|
5 |
|
6 | // `Math.atanh` method
|
7 | // https://tc39.github.io/ecma262/#sec-math.atanh
|
8 | // Tor Browser bug: Math.atanh(-0) -> 0
|
9 | $({ target: 'Math', stat: true, forced: !(nativeAtanh && 1 / nativeAtanh(-0) < 0) }, {
|
10 | atanh: function atanh(x) {
|
11 | return (x = +x) == 0 ? x : log((1 + x) / (1 - x)) / 2;
|
12 | }
|
13 | });
|